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Core Java
Puzzler: nested computeIfAbsent
Overview The Java 8 libraries have a new method on map, computeIfAbsent. This is very useful way to turn your…
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Software Development
Rethinking database schema with RDF and Ontology
When I joined the industry 10 years ago, my first project used relational database. After that, my next project also…
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Software Development
Screenshot of the Week: Missing JRE
One of the more frustrating things about Eclipse–at least for some users–is that Eclipse doesn’t come with a Java Runtime Environment…
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Enterprise Java
How does Hibernate READ_WRITE CacheConcurrencyStrategy work
Introduction In my previous post, I introduced the NONSTRICT_READ_WRITE second-level cache concurrency mechanism. In this article, I am going to…
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Enterprise Java
The structure of Apache Lucene
The inestimably noble Apache Software Foundation produces many of the blockbuster products (Ant, CouchDB, Hadoop, JMeter, Maven, OpenOffice, Subversion, etc.)…
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Groovy
Grails’ JSONObject.NULL More or Less Equal To Null
Since Groovy 1.8 we can check if a Map is equal to another Map if the keys and values are…
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Software Development
My Thoughts on Go
Meh I have been working on a project that needs to run as small-footprint native code. I’ve been doing C…
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Software Development
Git: Going back to a specific date time and retrospective tagging
I’m a fairly happy Git user :-) It’s and excellent product and a great improvement on CVS, SVN, SourceSafe, PVCS…
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Scala
Akka samples with scala and Spring
I was looking around recently for Akka samples with Spring and found a starter project which appeared to fit the…
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